Board Layout, Bill of Materials, and Schematic
14
SLAU683 – May 2016
Copyright © 2016, Texas Instruments Incorporated
TAS5753MD Evaluation Module
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Board Layout, Bill of Materials, and Schematic
This section includes recommendations, the EVM board layouts, bill of materials, and schematics.
The evaluation module has the stereo device populated in the upper section of the board, while the mono
device is located on the lower part of the board. A headphone connection is available on the top of the
board, it is connected to the output of the headphone/line driver integrated in the stereo device. The
connector for the power supply is located between both amplifiers. The connector that interconnects the
evaluation module with the PPCMB is located in the left side of the board on the bottom face. The EVM
features three connectors at the right side of the board used for the connection of the speakers and loads
that are used together with the EVM. These connectors correspond to left and right channel of the stereo
device and the single output of the mono device. The board has two standoffs located on each corner of
the right side, allowing structural stability when connected to the controller board.
Figure 9. TAS5753MDEVM
All the basic components required by the amplifier are located in the top of the board. The output filters
are located on the right side of each amplifier, keeping the distance between the inductor and capacitor as
short as possible. Each amplifier has a 0.1-µF decoupling capacitor populated close to the device as well
as bulk capacitors close to each PVDD pin connection. The design has wide open areas at the top and
bottom part of the amplifier to increase the thermal dissipation of the amplifier.
Figure 10. TAS5753MD Layout